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library ieee; use ieee.std_logic_1164.all; use ieee.numeric_std.all; entity pwm is port ( clk : in std_ulogic; rst_n : in std_ulogic; ctrl_i : in std_ulogic_vector(3 downto 0); pwm_o : out std_ulogic); end entity; architecture rtl of pwm is begin end architecture rtl;